Year	Percent
1960-01-01	31.49540000000000
1961-01-01	27.71020000000000
1962-01-01	33.06980000000000
1963-01-01	35.27110000000000
1964-01-01	34.14910000000000
1965-01-01	35.19540000000000
1966-01-01	49.49320000000000
1967-01-01	52.11020000000000
1968-01-01	52.58410000000000
1969-01-01	52.58410000000000
1970-01-01	52.58410000000000
1971-01-01	52.58410000000000
1972-01-01	52.58410000000000
1973-01-01	52.58410000000000
1974-01-01	52.58410000000000
1975-01-01	69.81580000000000
1976-01-01	58.70020000000000
1977-01-01	63.73850000000000
1978-01-01	62.59650000000000
1979-01-01	66.82810000000000
1980-01-01	74.13920000000000
1981-01-01	75.10800000000000
1982-01-01	75.03860000000000
1983-01-01	81.80980000000000
1984-01-01	87.84050000000000
1985-01-01	91.33600000000000
1986-01-01	87.00580000000000
1987-01-01	97.04060000000000
1988-01-01	106.27300000000000
1989-01-01	127.54000000000000
1990-01-01	122.12899999999999
1991-01-01	127.85500000000000
1992-01-01	111.93799999999999
1993-01-01	109.95800000000000
1994-01-01	101.91000000000000
1995-01-01	96.14650000000000
1996-01-01	97.16320000000000
1997-01-01	94.64160000000000
1998-01-01	93.17440000000000
1999-01-01	100.22300000000000
2000-01-01	107.58000000000000
2001-01-01	110.35600000000001
2002-01-01	112.20100000000001
2003-01-01	118.77799999999999
2004-01-01	120.25800000000000
2005-01-01	125.90600000000000
2006-01-01	123.43200000000000
2007-01-01	121.26500000000000
2008-01-01	117.30100000000000
2009-01-01	124.87799999999999
2010-01-01	131.44200000000000
2011-01-01	127.39100000000000
2012-01-01	119.26799999999999
2013-01-01	116.52300000000000
2014-01-01	121.44500000000000
2015-01-01	122.18799999999999
2016-01-01	120.94200000000001